摘要
采用田间试验方法,研究了稻-蟹-泥鳅田生态系统的效益。结果表明:稻-蟹-泥鳅田饵料转化率在16.57%～18.34%之间,比稻-蟹田13.61%提高2.96%～4.73%。1hm2稻-蟹-泥鳅田产出无公害水稻9111kg、无公害河蟹474kg,分别与稻-蟹田水稻9200kg和河蟹489.6kg相近。增收无公害泥鳅145.8kg,经济效益比稻-蟹田14458元增加1015.6元。其中养泥鳅利润为1191.11元。
This paper analyses the benefit of the paddy, crab and loach field ecosystem through experiment. The results showed that the transformation ratio of diet was between 16.57% and 18.34% in paddy, crab and loach field, The yields of rice and crab were similar in both systems, but the additional 145.8kg loach per hm^2 was harvesfed in paddy, crab and loach system, The benefit in paddy, crab and loach field per hm^2 was 1015.6yuan, and that in paddy and crab field was 14458yuan. The benefit of loach was 1191.11yuan.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2005年第4期401-404,共4页
Journal of Shenyang Agricultural University
关键词
水稻
河蟹
泥鳅
无公害食品
生态效益
rice
crab
loach
non-polluted food
ecological benefit
